Year	% of GDP
1960	11.114899420388682
1961	13.345929233940227
1962	15.798922800718133
1963	19.02654867256637
1964	18.761451080982045
1965	18.386740331491712
1966	18.102462849423258
1967	16.37984019668101
1968	16.370769985286906
1969	13.594223569263683
1970	17.50781976498436
1971	20.8490930142802
1972	22.580872011251756
1973	22.533781979383647
1974	25.36529880129495
1975	25.08507970625112
1976	22.097204913654974
1977	23.08286951144094
1978	24.761125481708284
1979	26.387213510253314
1980	31.13416372777069
1981	36.03179837883811
1982	36.33444623716034
1983	35.79155073533587
1984	31.91829038340666
1985	29.848973796308247
1986	26.34997346146325
1987	22.080532774249246
1988	24.60322615567825
1989	29.07738066956183
1990	33.043054727454425
1991	36.35623575382611
1992	36.627467116178444
1993	38.87301531992985
1994	40.24536864131464
1995	43.58596324048312
1996	42.495625305440385
1997	43.11432069412161
1998	26.825729144233044
1999	21.891250282613612
2000	25.292016576833397
2001	25.12344751105426
2002	23.484328558791066
2003	22.414266576561303
2004	20.95484001620089
2005	22.303514858953086
2006	21.955012198718464
2007	22.404184326810352
2008	20.57032348895836
2009	21.9763571094904
2010	22.435399557359446
2011	22.183139142709543
2012	25.36344841503544
2013	26.47705607816111
2014	25.974496652787355
2015	25.865643531090054
2016	25.51778782429281
2017	25.062965299807022
2018	24.200464602675567
2019	22.936786503974567
2020	20.914016275991493
2021	19.26770479526015
2022	18.21350656695931
2023	19.22110595456699